[trustjp1]

So ever since I purchased this car it has had random codes . The first series made no sense and saw a tsb bulletin for the errors. Fast forward installed a eventuri intake and was receiving the egr code but then this code 128401 o2 stuck rich . I got the egr code taken care of but still have this one left . I switched the o2 sensors around to make sure one was not faulty . No dice . I monitor the o2 reading in MHD and still everything looks normal . Car drives normal and no hiccups . The eventuri inlets are very loose with the gaskets in place so maybe I need new gaskets ?

[S EyeLand]

I've learned over the years to just stick with the stock intake. Switch back and see if these errors go away. My F10 was a nightmare until I put the stock intake back in. The only M I never had issue was with my old F85 and the Dinan intake. Every other intake gave me issue to the point I now will only run stock intake systems.